RePT vs SubZero Gym
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RePT
Log your gym progress with this customizable workout tracker. Built on a Reverse Pyramid Training routine, it allows you to adapt it to any workout plan. Features include workout logging, timers, warm-up assistance, and rep tracking.
- Workout Logging
- Customizable Routines
- Workout Timer
- Warmup Helper
- Plate Calculation
- AMRAP Tracking
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RePT is a minimalistic app for logging your progress in the gym. It was mainly built upon a Reverse Pyramid Training routine written by Martin Berkhan. But after a lot of feedback, I decided to make it more customizable. You are free to customize RePT to work with whatever routine you want! RePT includes some really sweet features such as: Workout Logging Workout Timer Notifications Warmup Helper Workout Rules and Patterns Plate Calculation Exercise Notes AMRAP (As many reps as possible) .. and more to come! If you want to read about the RPT protocol that the included routine is based on you should give the leangains site a visit: https://leangains.com/reverse-pyramid-training-guide/ Thanks for using RePT!
SubZero Gym
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SubZero Gym is a complete fitness platform that puts a personal trainer in your pocket. Generate AI-powered workout plans, track every rep, monitor your recovery, and crush your goals — whether you train at a full gym, at home with dumbbells, or anywhere in between. PICK YOUR AI, BUILD YOUR PLAN Choose from 7 AI providers — Claude, GPT, Gemini, Grok, DeepSeek, Groq, or Perplexity — and 15 models. Generate 2 to 12-week progressive programs with periodization: Foundation, Build, Peak, and Deload phases. Plans adapt to your equipment (65+ types), schedule, and goals. Got injured? Changed your schedule? AI regenerates your plan while preserving progress. YETI: YOUR ON-DEVICE AI (Basic and above) Yeti runs locally on your iPhone — no internet required, instant responses. Workout Control (98 Commands): "Skip bench press." "My shoulder hurts." "Go lighter." "Swap to dumbbells." "Only have 30 minutes." "Add a set." Coaching: "How do I do this exercise?" — form tips, muscles, technique. "Should I train today?" — checks readiness. "Am I plateauing?" — analyzes progress. Schedule: "Swap today with tomorrow." "Skip today." "I need rest." AI Generation: Post-workout summaries with coaching tips. Weekly insights with volume trends. Personalized warm-ups based on today's workout. (Pro and above) SMART FEATURES (Pro and above) • Smart weight suggestions from your history • Readiness score from sleep, HRV, and resting heart rate • Plateau detection with intervention strategies • Effort PR detection — same weight at lower RIR = strength gain • Mid-workout fatigue detection with weight adjustment suggestions All local. Your data never leaves your device. TRAIN YOUR WAY • iPhone only — workout logging, rest timer, PR detection, Live Activity • iPhone + Apple Watch — real-time HR, voice announcements, haptic feedback • Log on iPhone while Apple Fitness tracks HR on Watch — data merges automatically • Apple Watch standalone — complete workouts from your wrist TRACK EVERYTHING • 8 PR types: max weight, reps, volume, 1RM, effort PRs, distance, pace, duration • RIR tracking with intensity analysis • Muscle recovery heat map — 13 muscle groups, tap for details • Volume trends, frequency charts, complete workout history BODY COMPOSITION • Weight tracking with smart scale sync and trend charts • 12 body measurements with progress indicators • Encrypted progress photos — AES-256, Face ID required, stays on device NUTRITION & SUPPLEMENTS (Pro and above) • AI supplement stacks with research citations from PubMed • Three tiers: Essential, Beneficial, Optional with daily timing • Sync from MyFitnessPal, Cronometer, or any HealthKit app • Macro tracking with AI-personalized targets 54 ACHIEVEMENTS, 9 CATEGORIES Bronze through Diamond tiers. Workouts, volume, streaks, PRs, cardio, consistency, nutrition. Full-screen unlock celebrations. Shareable achievement cards. APPLE ECOSYSTEM • 8 Home Screen + 5 Lock Screen widgets • Live Activity & Dynamic Island during workouts • 4 Control Center controls • 7 Siri Shortcuts • WorkoutKit sync to Apple Fitness • Focus Filters for notification control • Apple Journal integration • iCloud sync across devices (Pro+ and above) • Family Sharing up to 6 members (Pro+/Elite+) 550+ EXERCISES. 65+ EQUIPMENT TYPES. Full gym, home gym, hotel gym, bodyweight only — SubZero adapts to what you have. PRIVACY FIRST All data stored locally. No ads. No third-party analytics. Progress photos encrypted. AI requests processed but never stored. 6 TIERS • Free: Core tracking, 1 plan/month • Basic ($3.99): Yeti AI, 98 commands • Pro ($7.99): Smart AI, Watch app, widgets • Pro+ ($15.99): iCloud sync, Family Sharing • Elite ($14.99): Unlimited plans, research citations • Elite+ ($29.99): Everything + Family Sharing Train smarter. Track everything. Achieve more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: SubZero Gym at Free against RePT's $15.99. SubZero Gym also leads on update cadence (every 3 days vs monthly). RePT's advantage is iOS requirement (14.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
SubZero Gym is free to download; RePT costs $15.99 up front. RePT sells 6 one-off in-app purchases and SubZero Gym sells 10 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
RePT ships an update monthly, SubZero Gym every 3 days. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.
| Parameter | RePT | SubZero Gym |
|---|---|---|
| Price | $15.99 | Free — better |
| Rating | 4.8 (124 ratings) — better | — |
| Positive reviews | 83.9% of reviews | — |
| Number of ratings | 124 — better | — |
| Update frequency | Monthly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 14.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 87 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | OrangeSomerApps | ShadowPing LLC |
Bugs and requests
RePT
Reported bugs
4 issues- Deleting a single workout messed up all charts
- Inputting data in wrong order doesn't save
- Simple app wipes workouts/exercises if wrong icon pressed
- Backup restore doesn't recognize file
Requested features
14 requests- Name workouts (not A,B,C)
- Increase bottom sets based on achievement
- Add more exercises (leg press, incline bench, dumbbells)
- Add dumbbell lifts
- Add custom machine weight intervals
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- Ability to change workout days (A and B)
- Warm-up set timer
- Adjust weight on second and third sets
- Adjust incremental weight formula
- Watch app
- Ez curl bar supplement
- Assisted chin-ups with bands
- Total workout time tracking
- Warmup timing notifications
SubZero Gym
Not enough reviews yet to summarise bugs or requests.
In-app purchases
RePT
- Coffee Donation$2.99
- Lunch Donation$9.99
- Dinner Donation$14.99
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- Headphones Donation$99.99
- Testing Device Donation$399.99
- Vacation Donation$999.99
SubZero Gym
- Basic Monthly$3.991 Month
- Pro Monthly$7.991 Month
- Elite Monthly$14.991 Month
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- Pro+ Monthly$15.991 Month
- Elite+ Monthly$29.991 Month
- Basic Annual$39.991 Year
- Pro Annual$79.991 Year
- Elite Annual$149.991 Year
- Pro+ Annual$159.991 Year
- Elite+ Annual$299.991 Year









